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Shimano Ultegra DI2 R8170 172,5 mm, 11-30T

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Product details

Group Shimano Ultegra R8170 Di2 F/Disc, 172.5 mm, 50x34t, 11-34. This group contains:

  • Shimano Ultegra front derailleur (Di2 spec.) FD-R8150 double down swing braze-on color series.
  • Shimano Ultegra brake (kit) BR-R8170 right/rear resin with fin without adapter, for 25 mm rear mounting thickness 1700 (black).
  • Shimano Ultegra crankset FC-R8100 12-speed 172.5 mm 50-34t color series.
  • Shimano Ultegra cassette CS-R8100-12 12-speed 11-12-13-14-15-17-19-21-24-27-30-34t.
  • Shimano battery (Di2 spec.) BT-DN300 internal 3.7 Wh.
  • Shimano Ultegra brake (kit) BR-R8170 left/front resin with fin assembled front bracket for 160 mm disc 1000 (black).
  • Shimano charging cable EW-EC300.
  • Shimano chain CN-M8100 HG 12-speed e-bike rated 126 links quick-link.
  • Shimano rear derailleur 12s Di2 RD-R8150 Ultegra.

Crankset chainrings: 50x34T.
Cassette teeth: 11-34.
Crank length: 172.5 mm.

Key specifications

Bike area of use
Racing bikes
Cassette compatibility
12-speed

General information

Item number
54579277
Manufacturer
Shimano
Category
Groupsets
Manufacturer no.
GRULTR8170DI2D009
Release date
10.2.2025

Colour

Colour
Black
Exact colour description
Black/Silver

Groupset properties

Bike area of use
Racing bikes
Cassette compatibility
12-speed
Maximum pinion size
34x
Number of chainrings
2x
Complete group equipment
Electronic circuit

Shift lever features

Braking system
Hydraulic

Front derailleur properties

Front derailleur construction
Down swing

Crank properties

Number of teeth
50 + 34

Origin

Country of origin
France

Scope of delivery

Scope of delivery
CN-M8100 HG 12-speed chain, CS-R8100-12 12-speed 11-34T cassette, FC-R8100 12-speed 172.5 mm 50-34T crankset, FD-R8150 front derailleur, RD-R8150 rear derailleur, BR-R8170 brakes, BT-DN300 battery, EW-EC300 charging cable

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